In the end, she meets Alice's older brother Jack. She discovers Batty and Jeffrey are perfect for each other.

Lydia is asked to choreograph the prossession before the wedding, and does a great job, though she gets annoyed with her sisters not paying attention. Alice is 1 year younger than Lydia and accompanies her on many of her journeys and adventures throughout Arundel. Lydia is an extroverted girl who makes a new friend almost immediately when she comes to Arundel, Cagney's daughter, Alice. Lydia likes dogs and talks sometimes to animals, but has only a weak authority to command them. Like Jane, Lydia is reading the Narnia series and believes greatly in destiny. She is a big fan of Fred Astaire, but admires also the ballet Swan Lake and loves the Spanish dance flamenco. Lydia has tried dance lessons numerous times, yet getting upset with them because of teachers telling her what to do. Lydia enjoys math she's taught at school but despises Skye's attempts to educate Lydia on further, more advanced, math. She has kept Tzina as a friend, possibly even a best friend. She's first introduced as dancing at the bus stop, waiting for Batty to come home from college. Lydia is a bubbly, happy, dancing 11 year old eager to new oppurtunities. She stabs Oliver with a quesadilla and for most of the book despises him throughout the book.

Batty tells her that it's nap time, but she only ponders this for a moment or two. She is two years old and is in her 'princess phaze' She is first seen peering out her bedroom (which used to be Batty's ) window fifteen minutes before she should have woken up from her nap and yelling for Ben, who is her favorite person in the world. The Penderwicks in Spring is Lydia's debut book.

The penderwicks in spring